Lubricator



H. J. KOEPKE LUBRICATOR Nov. 13, 1951 Filed March 31, 1950 INVENTORHENRY J.KOEPKE Y W fl///7 ATTORNEYS Patented Nov. 13, 1951 'U-Nl TED STAT E S PATENT OFFICE p LUBRICATOR Henry J Koepke, Waukesha, Wis.Application March 31, 1950, Serial No. 153,230

2 Claims. 1

This invention appertains to lubrication, and more particularly to anovel dispenser for eifectively oiling the centers of lathes and thelike.

One of the primary objects of my invention is to provide means whereby adesired quantity of lubricant can be quickly and forcibly delivered to aselected point by the mere pressure of the dispenser against the work(or vice versa) to be lubricated.

Another salient object of my invention is to provide (in one formlanovel hand lubricant dis-' penser embodying a handle forming a-containerfor the lubricant having a cylinder shell at one end communicatingwiththe interior of the container, a combined pressure plunger and deliverynozzle, and a normally closed valve for the .nozzle movable to an openposition upon the inward pushing of the delivery nozzle.

, A further important object of my invention is to provide a small,compact lubricant dispenser of the above character, which-will bedurable and efiicient in use, one that will be simple and easy tomanufacture and one which can be placed upon the market at a reasonablecost.

I With these and other objects in view, the invention consists in thenovel construction, arrangement and formation of parts, as will behereinafter more specifically described and claimed and illustrated inthe accompanying drawing, in which drawing,

Figure 1 is a longitudinal sectional view through one preferred form ofmy dispenser.

Figure 2 is a similar view, but showing the dispensing nozzle in itsdepressed position and the valve open for permitting the flow of thelubricant to the desired point.

Figure 3 is an enlarged detail transverse sectional View through thedispenser taken on the line 3-3 of Figure 2, looking in the direction ofthe arrows.

Figure 4 is a side elevational view illustrating another form of mydispenser, parts of the figure being shown broken away and in section toillustrate structural detail.

Referring to the drawing in detail, wherein similar reference charactersdesignate corresponding parts throughout the several views, the letter Dgenerally indicates my novel dispenser for a lubricating oil. Asillustrated, in Figures 1, 2 and 3, the dispenser D comprises anelongated hollow handle 5 forming a reservoir or container for thedesired lubricant. The forward end of the handle 5 is elongated andreduced in diameter to provide a barrel 6. The

. 2 handle or container 5can be filled with the selected lubricant inany desired manner, but as illustrated, the rear end of the handle 5 isprovided with a reduced neck 1, on which is threaded a removable closurecap 8.

Received in the barrel 6 and rigidly fastened thereto, in any preferredway, is the cylinder shell 9. This cylinder 9 extends into the handle 5a short distance and is provided with one or more inlet ports If), whichcommunicate with the interior of the handle. The inner end of thecylinder 9 is closed in any desired way, such as by a threaded plug ll.Slidably mounted within the cylinder 9 for reciprocatory movement isaplungersleeve l2 having formed on its outer end the contracteddispensing nozzle IS. The cutersurface of the plunger sleeve I2 isprovided with an annular stop shoulder 14, and the outer end of thecylinder shell 9 is flanged inwardly to provide an annular stop wall l5,and the engagement of the shoulder M with the stop wall 15 limits theoutward movement of the plunger sleeve l2 and the nozzle 13. Fittedwithin the plunger sleeve I2 for movement therewith, is the axiallydisposed guide bushing I6. The inner end ofthis bushing is closed andthe bushing in effect forms a direct part of the plunger sleeve andcooperates therewith to form a piston plunger, as willilater appear. Theouter surface of the bushing i6. is provided'with longitudinal channelsor grooves H, which extend from one end thereof to the other and thesechannels or grooves l1 constitute passageways for the lubricant, as willalso hereinafter more fully appear. Slidably mounted Within the bush-,ing i6 is the cylindrical valve body [8 and this body l8 carries theforwardly projecting needle valve l9 which normally sits in and closesthe nozzle I 3, as best shown in Figure 1. A light expansion coil spring2|] is fitted within the bushing I6 and normally urges the needle valveH! on its seat to close the nozzle. A relatively heavy expansion coilspring 2| is disposed within the cylinder shell 9, and this springnormally bears against the plunger shell [2 and normally urges theshoulder It against the flanged stop wall 15.

Considering that the hollow handle or container 5, is filled with thelubricant, it can be seen, see Figure 1, that the ports Ill are open,and consequently the inner end of the cylinder 9 will be filled withoil. When it is desired to apply the lubricant at a selected point, itis merely necessary to grasp the handle 5 in the hand; and press thenozzle 13 against the work,

3 so that the nozzle l3 and the plunger sleeve [2 will be forcedrearwardly against the spring 2|.

Inward movement of the cylinder sleeve l2 and the restricted nozzleoutlet onto the work. Upon release of pressure on the nozzle l3, thespring 2| will return the nozzle, the plunger sleeve l2, and the bushingIE to their normal position, and this forward movement will permit theinflow of oil into the cylinder through ports 10 after the ports areuncovered. Due to the small, compact nature of my dispenser, the same isparticularly adaptable for lubricating hard-toreach places, such as thecenter points of lathes and the like.

While the hand dispenser shown in Figures 1, 2 and 3, is preferred,obviously, the principles of my invention can be readily incorporated ina bench or like lubricator, see Figure 4. In this form of my invention,I provide a bracket 22, which can be rigidly secured to a bench or otherdesired place, by the use of bolts or like fastening element 22'. Theupper end of the bracket 22 is provided with a forwardly extendinghollow arm 23 which constitutes a cylinder 24. The arm 23 supports areservoir 25 and the reservoir has communication with the cylinder 24through a port 26. The cylinder 24 corresponds to the cylinder shell 9illustrated in Figures 1 to 3, and the port 26 corresponds to the ports10. The cylinder 24 has slidably mounted therein a plunger sleeve 21,which corresponds to the plunger sleeve I2 and this sleeve carries thecompanion parts, as is clearly illustrated in Figures 1, 2 and 3.

In this form of my invention, the work is pressed against a nozzle 28carried by the cylinder sleeve 2'! in lieu of the pressing of the nozzleagainst the work.

Various changes in details can be made without departing from the spiritor the scope of this invention but what I claim as new is:

1. A dispenser for a lubricant comprising a container for the lubricant,a cylinder closed at its inner end having a port communicating with thecontainer, a plunger sleeve mounted for reciprocatory movement withinthe cylinder terminating in a nozzle having a restricted outletextending beyond the cylinder, spring means normally urging the plungersleeve and nozzle outwardly beyond the port, a bushing mounted formovement with the plunger sleeve having a closed inner end and providedwith longitudinal channels connecting the inner end of the cylinder withthe nozzle, and a valve including 2. cylindrical body slidably mountedwithin the bushing and a needle point for the nozzle, and spring meansfitted in the bushing normally urging the valve outwardly with theneedle point closing the nozzle.

2. A compact hand dispenser for a lubricant comprising an elongatedhollow handle constituting a container for the lubricant having arestricted barrel on its inner end, a cylinder shell rigidly fitted insaid barrel and extending into the hollow handle and having an inletport communicating with the container, a plunger sleeve mounted forreciprocatory movement in the cylinder shell, a bushing rigidly securedto the sleeve having an inner closed end and provided withlongitudinally extending passageways connecting the inner end of thecylinder with the outer end of the plunger sleeve, a nozzle having arestricted outlet carried by said plunger sleeve and normally projectingbeyond the barrel and cylinder, spring means normally urging the sleeveand bushing to a forward position, means for limiting the outwardmovement of the plunger sleeve and nozzle, said plunger sleeve closingthe port upon inward movement thereof, a valve including a cylindricalbody slidably mounted in said bushing and a forwardly projecting needlefor closing the nozzle, and a spring housed within said bushing normallyurging the valve to a forward closed position.

HENRY J. KOEPKE.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 863,213 Perry Aug. 13, 19071,688,571 Zerk Oct. 23, 1928 1,703,286 Zerk Feb. 26, 1929

